{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5EOL4KYPCLOHBTKT3NJYBFUN3O","short_pith_number":"pith:5EOL4KYP","canonical_record":{"source":{"id":"1207.1433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-05T20:00:02Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"58127781bf55a49f025aa051e8c7322975d6de3a7e2aaaf88999fcf8d7248ac8","abstract_canon_sha256":"83789718ab07c55861e5accae2d93d85f018f44e3b7a61dbd584b82a6aeeea57"},"schema_version":"1.0"},"canonical_sha256":"e91cbe2b0f12dc70cd53db5380968ddb8bdf02a57f644d6930a218edb77b2b3d","source":{"kind":"arxiv","id":"1207.1433","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1433","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1433v1","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1433","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"5EOL4KYPCLOH","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5EOL4KYPCLOHBTKT","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5EOL4KYP","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5EOL4KYPCLOHBTKT3NJYBFUN3O","target":"record","payload":{"canonical_record":{"source":{"id":"1207.1433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-05T20:00:02Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"58127781bf55a49f025aa051e8c7322975d6de3a7e2aaaf88999fcf8d7248ac8","abstract_canon_sha256":"83789718ab07c55861e5accae2d93d85f018f44e3b7a61dbd584b82a6aeeea57"},"schema_version":"1.0"},"canonical_sha256":"e91cbe2b0f12dc70cd53db5380968ddb8bdf02a57f644d6930a218edb77b2b3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:51:37.083959Z","signature_b64":"bA70Y+M3iaX+Ba5h59ittZguDYH1DhMu1Tn/H4ly3KjxZyc242SzYKvgI0h7K8CS0xc4m1wQrJF6kfR2xXtjAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e91cbe2b0f12dc70cd53db5380968ddb8bdf02a57f644d6930a218edb77b2b3d","last_reissued_at":"2026-05-18T03:51:37.083494Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:51:37.083494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.1433","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HvH2kYxDjvot/U9zagZkVcLPIPjUlJxQ9nzrC1Ik0MmfA8rFBpIqtyi26IyirDQf06VMNl4+hyVZyPWJ/0qpCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:39:31.554602Z"},"content_sha256":"ebeb12cae5323f69792760a14b2405ad4292188de73e26e42f91a14aa3854029","schema_version":"1.0","event_id":"sha256:ebeb12cae5323f69792760a14b2405ad4292188de73e26e42f91a14aa3854029"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5EOL4KYPCLOHBTKT3NJYBFUN3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Higher Order Collins Modulations in Transversely Polarized Quark Fragmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Anthony W. Thomas, Hrayr H. Matevosyan, Wolfgang Bentz","submitted_at":"2012-07-05T20:00:02Z","abstract_excerpt":"The Collins effect describes the modulation of the hadron production by a transversely polarized quark with the sine of the polar angle, $\\varphi$, between the produced hadron's transverse momentum and the quark spin. We employ a quark-jet model to describe multiple hadron emissions by such a quark, taking the Collins effect into account. The resulting hadron distributions exhibit modulation up to fourth order in $\\sin(\\varphi)$ when only two hadron emissions are allowed, rising with any further increase in the number of emitted hadrons. These new effects are a direct consequence of the quark-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1433","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rXsF7zsANP/E9Ry/QctkoHB1NFbCDlcXdAsumEWFPXZFg/XWp9qWVfWObq0J4EoPC5NkHdjFOHC2yZzxoP4qCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:39:31.555219Z"},"content_sha256":"c7c8bc19bdfe15432149e7c06d6f203e898ae28547eaea975c900543c6ee3e2f","schema_version":"1.0","event_id":"sha256:c7c8bc19bdfe15432149e7c06d6f203e898ae28547eaea975c900543c6ee3e2f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/bundle.json","state_url":"https://pith.science/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T01:39:31Z","links":{"resolver":"https://pith.science/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O","bundle":"https://pith.science/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/bundle.json","state":"https://pith.science/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5EOL4KYPCLOHBTKT3NJYBFUN3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5EOL4KYPCLOHBTKT3NJYBFUN3O","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"83789718ab07c55861e5accae2d93d85f018f44e3b7a61dbd584b82a6aeeea57","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-05T20:00:02Z","title_canon_sha256":"58127781bf55a49f025aa051e8c7322975d6de3a7e2aaaf88999fcf8d7248ac8"},"schema_version":"1.0","source":{"id":"1207.1433","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1433","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1433v1","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1433","created_at":"2026-05-18T03:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"5EOL4KYPCLOH","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5EOL4KYPCLOHBTKT","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5EOL4KYP","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:c7c8bc19bdfe15432149e7c06d6f203e898ae28547eaea975c900543c6ee3e2f","target":"graph","created_at":"2026-05-18T03:51:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The Collins effect describes the modulation of the hadron production by a transversely polarized quark with the sine of the polar angle, $\\varphi$, between the produced hadron's transverse momentum and the quark spin. We employ a quark-jet model to describe multiple hadron emissions by such a quark, taking the Collins effect into account. The resulting hadron distributions exhibit modulation up to fourth order in $\\sin(\\varphi)$ when only two hadron emissions are allowed, rising with any further increase in the number of emitted hadrons. These new effects are a direct consequence of the quark-","authors_text":"Anthony W. Thomas, Hrayr H. Matevosyan, Wolfgang Bentz","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-05T20:00:02Z","title":"Higher Order Collins Modulations in Transversely Polarized Quark Fragmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1433","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ebeb12cae5323f69792760a14b2405ad4292188de73e26e42f91a14aa3854029","target":"record","created_at":"2026-05-18T03:51:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"83789718ab07c55861e5accae2d93d85f018f44e3b7a61dbd584b82a6aeeea57","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-05T20:00:02Z","title_canon_sha256":"58127781bf55a49f025aa051e8c7322975d6de3a7e2aaaf88999fcf8d7248ac8"},"schema_version":"1.0","source":{"id":"1207.1433","kind":"arxiv","version":1}},"canonical_sha256":"e91cbe2b0f12dc70cd53db5380968ddb8bdf02a57f644d6930a218edb77b2b3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e91cbe2b0f12dc70cd53db5380968ddb8bdf02a57f644d6930a218edb77b2b3d","first_computed_at":"2026-05-18T03:51:37.083494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:37.083494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bA70Y+M3iaX+Ba5h59ittZguDYH1DhMu1Tn/H4ly3KjxZyc242SzYKvgI0h7K8CS0xc4m1wQrJF6kfR2xXtjAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:37.083959Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1433","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ebeb12cae5323f69792760a14b2405ad4292188de73e26e42f91a14aa3854029","sha256:c7c8bc19bdfe15432149e7c06d6f203e898ae28547eaea975c900543c6ee3e2f"],"state_sha256":"c721c9b8145b51ae5d2537d2077facd845317931628dae95fd79fe368da32b0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XAFbGgnjPpGAvkZN0xSbVn48rH40ZPfCXCW0ODq+KixNtzBwhMuCa1L5h6i6aQsFsyyUpXadjowPqp9Omp3PBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:39:31.559293Z","bundle_sha256":"ffe88a4442b002eecb00b3f02fb039c5205264649c61ec02434414e75a4272b3"}}